Axial flexible radially stiff retaining ring for sealing in a ga

Details Axial flexible radially stiff retaining ring for sealing in a ga Axial flexible radially stiff retaining ring for sealing in a ga

1980-07-18

1984-01-10

Hornsby, Harvey C.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Resilient

415134, 415138, 415174, 277 26, F01D 2526

Patent

active

044250789

ABSTRACT:
An annular ring 22 for an axial flow gas turbine engine disposed inwardly of an array of stator vanes 14 and between an annular flow path 18 for hot working medium gases and an annular flow path 20 for cooling air is disclosed. The ring abuttingly engages the array of stator vanes in the radial direction to provide radial support and abuttingly engages the array of stator vanes and an outer air seal block the intermixing of gases from the working medium flow path and gases from the cooling air flow path. The annular ring includes a first annular section 28 and a second annular section 30. The first annular section has an axial width to radial height ratio greater than one and the second annular section has an axial width to radial height ratio less than one to adapt the ring for axial flexibility and radial stiffness and to enable the ring to accommodate growth and axial growth between the outer air seal and the array of stator vanes while remaining within the elastic limit.

REFERENCES:
patent: 3602532 (1971-08-01), Ehrenberg
patent: 4083647 (1978-04-01), Tatkov et al.
patent: 4311432 (1982-01-01), Kildea
Formulas for Stress and Strain, by Roark and Young, 5th Edition by McGraw Hill, p. 384.

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